CVE-2026-109318CWE-78command-injection

CVE-2026-109318

High · published October 12, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
68.5
In the wild
Unconfirmed
What it is

Grav Git Sync 1.0.2 through 3.4.12 contains a command injection vulnerability that allows authenticated content editors to execute OS commands by injecting shell substitutions into profile fields. When the gravuser or gravfull author mode is enabled, attackers can set a malicious username, full name, or email that reaches PHP exec() via git commit --author, running commands as the web-server account.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.01220 · 68.5th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-10-12T21:17Z
References (2)
https://github.com/getgrav/grav/security/advisories/GHSA-c89w-55m3-fmf7 · [email protected]https://www.vulncheck.com/advisories/grav-git-sync-1.0.2-through-3.4.12-command-injection-via-commit-author · [email protected]
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 1%
    epss
  • 12 OCT 16:05Z
    Grav Git Sync 1.0.2 through 3.4.12 Command Injection via Commit Author
    cvelistv5
  • 12 OCT 16:05Z
    Grav Git Sync 1.0.2 through 3.4.12 Command Injection via Commit Author
    cvelistv5